# Influenza A (H5N1) of avian origin in domestic livestock in the USA - GOV.UK

> The UK's Defra and Animal and Plant Health Agency publish outbreak assessments of avian influenza H5N1 in US domestic livestock. The page lists assessments dated April 2024, August 2024 and an updated February 2025 assessment. The findings cover the spread of the virus in US cattle.

- Date: 2024-04-28 · published 2024-04-28T12:00:00.000Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/16098-influenza-a-h5n1-of-avian-origin-in-domestic-livestock-in-the-usa-gov-uk
- Commodities: [Milk (Class III)](https://feedsoft.ai/c/MILK.md)

## Why it matters

Confirmed H5N1 infection in dairy herds raises disease-control and milk output concerns, but the direct effect on feed demand is limited. Any price effect would be modest unless losses grow.

## Read by commodity

- MILK: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| MILK | 2024-10-30 | [Protect Livestock and Public Health from H5N1 Avian Influenza \| APHIS](https://feedsoft.ai/events/16051-protect-livestock-and-public-health-from-h5n1-avian-influenza-aphis.md) | -12.3% | -12.6% |
| MILK | 2025-07-31 | [The changing landscape of Livestock Diseases in 2025 \| CLAL News](https://feedsoft.ai/events/15985-the-changing-landscape-of-livestock-diseases-in-2025-clal-news.md) | +1.6% | +1.8% |
| MILK | 2025-12-19 | [Update: Genetic Sequencing Results for Wisconsin Dairy Herd Detection of Highly Pathogenic Avian Influenza \| APHIS](https://feedsoft.ai/events/15946-update-genetic-sequencing-results-for-wisconsin-dairy-herd-detection-of-highly.md) | +0.4% | -6.6% |
| MILK | 2026-04-24 | [Researchers develop promising livestock vaccine against H5N1](https://feedsoft.ai/events/15918-researchers-develop-promising-livestock-vaccine-against-h5n1.md) | +2.0% | +0.4% |
| MILK | 2026-03-20 | [Why We Must Vaccinate US Dairy Cattle Against HPAI H5N1 \| The Journal of Infectious Diseases \| Oxford Academic](https://feedsoft.ai/events/15928-why-we-must-vaccinate-us-dairy-cattle-against-hpai-h5n1-the-journal-of.md) | +0.1% | +4.5% |

## Sources

- gov.uk: https://www.gov.uk/government/publications/influenza-a-h5n1-of-avian-origin-in-domestic-livestock-in-the-usa

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.